X = int(input())
if X >= 400 and X <= 599:
  rank = 8
elif X >= 600 and X <= 799:
  rank = 7
elif X >= 800 and X <= 999:
  rank = 6
elif X >= 1000 and X <= 1199:
  rank = 5
elif X >= 1200 and X <= 1399:
  rank = 4
elif X >= 1400 and X <= 1599:
  rank = 3
elif X >= 1600 and X <= 1799:
  rank = 2
elif X >= 1800 and X <= 1999:
  rank = 1
print(rank) X = int(input()) X int(input()) int input() input if X >= 400 and X <= 599:
  rank = 8
elif X >= 600 and X <= 799:
  rank = 7
elif X >= 800 and X <= 999:
  rank = 6
elif X >= 1000 and X <= 1199:
  rank = 5
elif X >= 1200 and X <= 1399:
  rank = 4
elif X >= 1400 and X <= 1599:
  rank = 3
elif X >= 1600 and X <= 1799:
  rank = 2
elif X >= 1800 and X <= 1999:
  rank = 1 X >= 400 and X <= 599 X >= 400 X 400 X <= 599 X 599 rank = 8 rank 8 elif X >= 600 and X <= 799:
  rank = 7 X >= 600 and X <= 799 X >= 600 X 600 X <= 799 X 799 rank = 7 rank 7 elif X >= 800 and X <= 999:
  rank = 6 X >= 800 and X <= 999 X >= 800 X 800 X <= 999 X 999 rank = 6 rank 6 elif X >= 1000 and X <= 1199:
  rank = 5 X >= 1000 and X <= 1199 X >= 1000 X 1000 X <= 1199 X 1199 rank = 5 rank 5 elif X >= 1200 and X <= 1399:
  rank = 4 X >= 1200 and X <= 1399 X >= 1200 X 1200 X <= 1399 X 1399 rank = 4 rank 4 elif X >= 1400 and X <= 1599:
  rank = 3 X >= 1400 and X <= 1599 X >= 1400 X 1400 X <= 1599 X 1599 rank = 3 rank 3 elif X >= 1600 and X <= 1799:
  rank = 2 X >= 1600 and X <= 1799 X >= 1600 X 1600 X <= 1799 X 1799 rank = 2 rank 2 elif X >= 1800 and X <= 1999:
  rank = 1 X >= 1800 and X <= 1999 X >= 1800 X 1800 X <= 1999 X 1999 rank = 1 rank 1 print(rank) print rank rank = 8 8 rank rank = 6 6 rank rank = 5 5 rank rank = 2 2 rank X = int(input()) int(input()) X rank = 7 7 rank rank = 3 3 rank rank = 1 1 rank rank = 4 4 rank
X = int(input())
if X >= 400 and X <= 599:
  rank = 8
elif X >= 600 and X <= 799:
  rank = 7
elif X >= 800 and X <= 999:
  rank = 6
elif X >= 1000 and X <= 1199:
  rank = 5
elif X >= 1200 and X <= 1399:
  rank = 4
elif X >= 1400 and X <= 1599:
  rank = 3
elif X >= 1600 and X <= 1799:
  rank = 2
elif X >= 1800 and X <= 1999:
  rank = 1
print(rank)